x^2-0.35x-0.65=0

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Solution for x^2-0.35x-0.65=0 equation:



x^2-0.35x-0.65=0
a = 1; b = -0.35; c = -0.65;
Δ = b2-4ac
Δ = -0.352-4·1·(-0.65)
Δ = 2.7225
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-0.35)-\sqrt{2.7225}}{2*1}=\frac{0.35-\sqrt{2.7225}}{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-0.35)+\sqrt{2.7225}}{2*1}=\frac{0.35+\sqrt{2.7225}}{2} $

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